/**
* Constructor.
*
* @param user user whose model is created.
*/
public FeatureUserIntentModel(U user) {
Object2DoubleOpenHashMap<F> auxProb = new Object2DoubleOpenHashMap<>();
auxProb.defaultReturnValue(0.0);
int[] norm = {0};
totalData
.getUserPreferences(user)
.forEach(
iv -> {
featureData
.getItemFeatures(iv.id)
.forEach(
fv -> {
auxProb.addTo(fv.id, 1.0);
norm[0]++;
});
});
if (norm[0] == 0) {
norm[0] = featureData.numFeatures();
featureData.getAllFeatures().sequential().forEach(f -> auxProb.put(f, 1.0));
}
auxProb
.object2DoubleEntrySet()
.forEach(
e -> {
e.setValue(e.getDoubleValue() / norm[0]);
});
this.prob = auxProb;
}
